Tu pourrais lire la doc que je t'ai fournis quand même
Remarks
This function causes a thread to relinquish the remainder of its time slice and become unrunnable for at least the specified number of milliseconds, after which the thread is ready to run. In particular, if you specify zero milliseconds, the thread will relinquish the remainder of its time slice but remain ready. Note that a ready thread is not guaranteed to run immediately. Consequently, the thread may not run until some time after the specified interval elapses. For more information, see Scheduling Priorities.